Horizontal drilling machine



Dec. 8, 1931. J, O, T|| LY 1,835,191

HORIZONTAL DRILLING MACHINE Filed April 12, 1928 3 Sheets-Sheet l Qnwntoz Filed April 12, 1928 3 Sheets-Sheet 2 nvanl'oz J. @Tilly jb a ifonnll Dec.,8, 1931. J. o. TILLY HORIZONTAL DRILLING MACHINE Filed April 12, 1928 3 Sheets-Sheet 3 9 a 3 AI. Z Z 7 j z 0. @u J 2 /v Z 6 J J .Z9 0 6 ,D 6 Z u. m m f w w 4 7W 2 f H r. H -Il 1 Z /N am ff u 5. a 5

Patented 8, 193.14

PATENT OFFICE uns o. nur, vor imsxoenn. OKLAHOMA HORIZONTAL DRILLING IOHIN E Application med April 18, 1988. Serial No. 289,494.

This invention relates to a machine adapted for the drilling of horizontal holes 1n the earth under streets, intersections or the like as to accommodate the laying of pipesfor .5 iuids or to serve as electrical conduits.

It is primarily aimed to provide a machine which will be labor saving to a maximum extent, safe in operation and inexpensive in cost, operation and upkeep.

The invention especiall provides a novel means whereby digging o streets or the like struck by tramo.

It is further aimed to provide a novel construction which is portable and wherein means is associated with the drill and rotatable in an opposite direction thereto so as to convey away the drillin s.

Additional objects an advantages will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

Figure 1 is a view of the improved apparatus, partly broken away, in side elevation;

Figure 2 is a transverse sectional View through the apparatus taken on the line 2 2 of Figure 1;

Figure 3 is a central longitudinal sectional View taken through the drill and drillingsconveying mechanism;

Figure 4 is a plan view of the frictional drive for the propulsion mechanism;

Figure 5 is a fragmentary sectional view taken on the line 5 5 of Figure 4;

Figure 6 is a sectional view taken on the line 6 6 of Figure 3;

Figure 7 is a fragmentary longitudinal sectional view showing the connection between sections of the auger or conveyor;

Figure 8 is a sectional view taken on the line 8 8 of Figure 7, and

Figure 9 is a detail rear elevation of the yoke for shifting the shaft carrying the opposed friction dlsk.

Referring specifically to the drawings, wherein like reference characters designate like or similar arts, the invention is of a portable nature 1n that it embodies a tractor having a frame 10 equipped with front wheels 11 and rear wheels 12.

A conventional motor is mounted on the frame 10 as at 13, having a conventional transmission at 14 (unnecessary to describe in detail) to control the drivin of the propeller or main shaft 15. Keye to the shaft 15 is a friction gear wheel 16. A transverse shaft 17 is slidably mounted in suitable bearings on frame 10, as well as rotatable in such bearin s. It will be apparent that sliding shaft 1 in its bearings will move either disk 18 or 19 into frictional engagement with disk 16 and thereby control rotation of shaft 17 in either direction desired for movement of the drill in a forward or drilling movement or to reverse it when removing the drill from the boring, and shaft 17 may, also, be so adjusted that neither of disks 18 or 19 frictionally engages disk 16 when it is desired to hold the drill stationary. In order to move the shaft 17 slidably, a grooved collar 20 is keyed to such shaft and a yoke 21 engages in the groove. Such yoke 21 is secured to and extends from a vertical rod 22 journaled in a sleeve 23 mounted on a bracket 24 fastened to the frame 10. A crank 25 is also secured to the rod 22 and is pivotally connected at one end t0 a link 26 which at its other end is pivotally connected at 27 to an operating lever `28 fulcrumed at 29 to the casing of the engine 13. The lever 29 has a suitable lock means 30 associated therewith to secure the same in its different positions, that is with the wheels 18 and 19 neutral or selectively in engagement with the wheel 16, according to conditions.

Keyed on shaft 17 is a gear wheel 31 which is in constant mesh with a larger gear wheel 32 keyed on a shaft 33 journaled in suitable bearings 34 of the frame 10.

The bit or drill mechanism consists of a cylindrical casing 35 which is journaled in bearings 36 provided on suitable elements of Will be imparted thereto and to the Iattached to it. I

The soil or drillings falling onto the the frame 10. Fastened to the casing is a forward reduced casing section 37, detachably secured to the section 36 as by bolts at 38. .Rotatable within the `easing section 35 is an auger or drill section 38 having its shank 39 journaled in a bearing 40 provided y.at the rear end of section 35.

Within and extending forwardly of section 37 is a reduced drilling or auger section 41, which is fastened to the auger section 38 by a splice or coupling member 42, as detailed in Figure 7, the same adjacent the junction of the sections 35 and 41l being roughened or serrated as at 43 in Figures 7 and 8, and with the portions of the drill sections 38 and 41 pressed into intimate lbinding contact therewith and the fastening of the splice 42 to such sections 38 and 41 may be augmented by means of pins or fastenings 44 passed through alined openings in such sections and spllce 42. If desired such pins 44 may be removable so that the section 41 may be slipped off of the splice 42 or removed. At the forward end ofthe section 41, a conical drilling head 45 is mounted. Arms 46 extend forwardly from the section 37 and into the interior of the cone 45 to form bearings therefor. The section 35 is preferably provided with a plurality of longitudinally disposed slots or openings 47 so that the drillings or removed earth may fall therethrough onto the ground.

The drill 38-41--45 is adapted to be rotated in a clockwise direction while the casing 35 is adapted to be rotated in a counterclockwise direction to the end that the drillings will be readily and immediately removed and conveyed rearwardly so as to fall out of the yopenings 47 and onto the ground. In order to rotate the drill, the shank 39 has a sprocket wheel 48 thereon over which sprocket chain 49 is trained and which sprocket wheel also traverses a sprocket Wheel at 50 keyed to a counter-shaft 51 journaled in suitable bearings on the frame 10. On the shaft 15, a sprocket Wheel 52 is keyed and a sprocket chain 53 passes thereover and engages a sprocket wheel 54 fixed on the shaft 51 in order to impart rotation to the latter shaft. Said sprocket chain 53 in addition trains over a relatively large sprocket wheel 55 keyed to the casing section 35 so that proper rotation section 37 ground through the openings 47 is adapted im art rotation to the packers or wheels 56.

n order to rovide for easier drillin water is adapte to be supplied at the point of drilling, 4to which end communicating bores or passageways 62 are'provided throughout the length of the sections 38, 41 and 45, as well as the splice 42. The rear end of the shank 39 is extended as at 64 to facilitate attachment of a. water hose thereto and which leads from a centrifugal or other pump 66 'adapted to be arranged 1n communication with a source of water supply. The ump is operated for instance by a pulle which as shown in Figure 2 is arrange in contact with the periphery of the wheel or disk 16 in order'to be driven thereby.

Various changes may be resorted to provided they fall within the spirit and scope of the invention.

I claim as my invention:

1. A machine of the class described having a frame, a drill, a casin surrounding the drill and in which the drill is journaled, said casing being journaled on said frame, a driven shaft, means driven by said shaft to operate the drill and casing 1n opposite directions of rotation, packer means journaled on the frame at the rear of the casing to pack drillings falling from the latter, a counter shaft, a reversible drive between the first mentioned shaft and the counter shaft, and means to drive the packer means from the counter shaft.

2. A machine of the class described having a frame, supporting wheels adjacent the front thereof, a supplemental frame depending from the first mentioned frame adjacent the rear thereof and carrying rear supporting wheels, packer means journaled on the main frame in front of the supplemental frame and in the rear of the front wheels, means operable to drive the packer means, a substantially horizontal casing journaled on theauxiliary frame relatively close to the ground, drill means extending within the casing, a gear connection from the first mentioned means mounted on said frames to drive said casing and drill means in opposite directions, said casing being perforated adjacent the auxiliary frame whereby drillings will be discharged therefrom in the path of advance of the packer means to be packed by the latter.

In testimony whereof I aliix my si atlure.

JAMES O. LLY.

to be packed by means of relatively heavy rollers or packers 56 carried by the machine substantially centrally. Such packers may be two in number as shown and keyed to a shaft 57 rotatably mounted in bearings 58 forming part of the frame 10. Such shaft 57 has sprocket wheels 59 keyed thereto over which sprocket chains 60 are trained and which in turn pass over sprocket wheels 61 on the shaft 33 so that the latter shaftfmay 

